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Question
Choose the most appropriate option for the following question.
No parrots are black.
All crows are black.
From the above premises which one of the following conclusions is true?
Options
No conclusion can be drawn.
No crows are parrots.
Some parrots are not crows
Some crows are not parrots.
Solution
No crows are parrots.
Explanation:
The Venn diagram is as follows:
So, No crows are parrots is true.
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RELATED QUESTIONS
The questions below have two/three statements followed by two conclusions numbered I and II. You have to take the given statements to be true even if they seem to be at variance with commonly known facts. Read all the conclusions and then decide which of the given conclusions logically follow from the given statements disregarding commonly known facts.
Statements:
I. No athletes are vegetarians.
II. All players are athletes.
II. Therefore, ________________
Read the following statement considering them to be true and therefore judge their conclusions numbered I, II and III and given your answer accordingly.
Statements: Some towns are villages. Some villages are lanes. Some lanes are hamlets.
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In the following question, certain statements are given followed by two conclusions numbered I and II. Consider the statement(s) to be true even if they seem to be at variance from commonly known facts. Decide which one of the conclusions logically follows from the statement(s).
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Considering given statements as true, select a logical conclusion based on the given statements.
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Statement: Prime age school-going children in urban India have now become avid as well as more regular viewers of television, even in households without a TV. As a result there has been an alarming decline in the extent of readership of newspapers.
Conclusions:
I. Method of increasing the readership of newspapers should be devised.
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Six statements are given. Below them sets of three statements are given. Decide which set has third sentence as logical conclusion of first and second sentences considering the first two statements to be correct.
(A) No cake is sweet.
(B) All candy is sweet.
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Statement: Company X has a record of manufacturing cameras of quality and the latest design so that you do not spoil even a single shot irrespective of the weather conditions.
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I. No other company except X is reputed in the camera industry.
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In the questions below are given two statements followed by two Conclusions I and II. You have to take the two given statements to be true even if they #seem to be at variance from commonly known facts and decide which of the given conclusion(s) logically follow(s) from the two given statements, disregarding commonly known facts.
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- Some banks are colleges.
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- At least some banks are schools.
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In the questions below are given two statements followed by two Conclusions I and II. You have to take the two given statements to be true even if they #seem to be at variance from commonly known facts and decide which of the given conclusion(s) logically follow(s) from the two given statements, disregarding commonly known facts.
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